Peak recording instrument

Claim 1

A PEAK LINEAR ACCELEROMETER INCLUDING THE COMBINATION OF: A SUBSTANTIALLY CYLINDRICAL CASE HAVING A LONGITUDINAL AXIS; A MASS DISPOSED WITHIN SAID CASE, SAID MASS BEING ADAPTED TO MOVE LONGITUDINALLY WITHIN SAID CASE; A PAIR OF SPRING MEMBERS CONNECTED NEAR OPPOSITE ENDS OF SAID MASS, SAID SPRING MEMBERS BEING CONNECTED TO SAID CASE TO DETERMINE THE INITIAL LONGITUDINAL POSITION OF SAID MASS WITHIN SAID CASE AND TO APPLY A BIAS FORCE UPON SAID MASS ALONG SAID AXIS; INDICATOR MEANS CONNECTED TO SAID MASS AT OPPOSITE ENDS THEREOF, SAID INDICATOR MEANS INCLUDING FIRST AND SECOND DISCS, SAID FIRST DISC BEING CONNECTED TO ONE END OF SAID MASS AND SAID SECOND DISC BEING ALIGNED IN A PLANE NORMAL TO SAID LONGITUDINAL AXIS, SAID DISCS INCLUDING A PLURALITY OF GRADUATIONS UPON THE FACES THEREOF OPPOSITE SAID MASS; A FIRST PLASTIC DEFORMABLE BODY DISPOSED UPON SAID FIRST DISC; A SECOND PLASTIC DEFORMABLE BODY DISPOSED UPON SAID SECOND DISC, SAID BODIES HAVING A PREDETERMINED SHAPE; AND, TRANSPARENT MEANS CONNECTED TO SAID CASE FOR LIMITING THE MOVEMENT OF SAID MASS ALONG SAID LONGITUDINAL AXIS THEREBY TO DEFORM ONE OF SAID BODIES UPON A CHANGE IN POSITION OF SAID MASS PRODUCED BY A FORCE WHICH EXCEEDS THAT OF SAID BIAS FORCE, WHEREBY SAID MOVEMENT OF SAID MASS IS MAGNIFIED BY A CHANGE IN SHAPE OF THE DEFORMED BODY IN A PLANE NORMAL TO SAID FORCE.